2014 Marine Biological Association (MBA) Yealm River non-native species timed search

Timed searches undertaken by the Marine Biological Association (MBA) to search for non-native species in the Yealm Estuary. Searches primarily focused on the Pacific Oyster (Magallana gigas), although other non-natives were recorded. Abundance was primarily Present/Not present, but in some cases non-standard units of abundance (eg. 'Not common') were used.海洋生物协会（Marine Biological Association, MBA）在伊尔姆河口（Yealm Estuary）开展针对非本土物种的定时调查。本次调查主要以太平洋牡蛎（Magallana gigas）为核心监测对象，同时也记录了其他非本土物种。物种丰度的记录方式主要采用"存在/不存在"形式，但部分案例中使用了非标准化的丰度单位（例如"不常见"）。